Names.pdBlocked             package:nlme             R Documentation

_N_a_m_e_s _o_f _a _p_d_B_l_o_c_k_e_d _O_b_j_e_c_t

_D_e_s_c_r_i_p_t_i_o_n:

     This method function extracts the first element of the 'Dimnames'
     attribute, which contains the column names, for each block
     diagonal element in the matrix represented by 'object'.

_U_s_a_g_e:

     ## S3 method for class 'pdBlocked':
     Names(object, asList, ...)

_A_r_g_u_m_e_n_t_s:

  object: an object inheriting from class 'pdBlocked' representing a
          positive-definite matrix with block diagonal structure

  asList: a logical value. If 'TRUE' a 'list' with the names for each
          block diagonal element is returned. If 'FALSE' a character
          vector with all column names is returned. Defaults to
          'FALSE'.

     ...: some methods for this generic require additional arguments. 
          None are used in this method.

_V_a_l_u_e:

     if 'asList' is 'FALSE', a character vector with column names of
     the matrix represented by 'object'; otherwise, if 'asList' is
     'TRUE', a list with components given by the column names of the
     individual block diagonal elements in the matrix represented by
     'object'.

_A_u_t_h_o_r(_s):

     Jose Pinheiro Jose.Pinheiro@pharma.novartis.com and Douglas Bates
     bates@stat.wisc.edu

_S_e_e _A_l_s_o:

     'Names', 'Names.pdMat'

_E_x_a_m_p_l_e_s:

     data(Orthodont)
     pd1 <- pdBlocked(list(~Sex - 1, ~age - 1), data = Orthodont)
     Names(pd1)

